air quality sensor Articles

  • CO2 vs. VOC Sensors for IAQ - What`s the Difference

    People sometimes ask about the differences between VOC (Volatile Organic Compounds) sensors and CO2 sensors. While both can be used to measure indoor air quality (IAQ), these sensors are not interchangeable. They measure very different things. CO2 sensing technology by IR (infrared) is stable and is not subject to the short-term, random drift found in air quality sensors. Most IR carbon ...


    By CO2 Meter, Inc.

  • uHoo - Your First Step to Clean Air

    They say your home is where the heart is. Just like the heart, the home needs a tracker to know whether it is healthy or not. The uHoo indoor air quality sensor acts like a fitness tracker for your home’s indoor air quality. It measures nine parameters – making it – making it the most advanced indoor air quality sensor – that ...


    By uHoo Limited

  • Smart cities risk reputation with poor air quality data

    The team at AQMesh continue to receive many enquiries from smart city initiatives and are concerned that integrators risk undermining entire projects by distributing meaningless or misleading air quality information. “Many of the people I speak to are used to dealing with sensors that are easy to ‘plug and play’ and expect to be able to do the same with air quality sensors. This ...


    By AQMesh

  • Indoor Air Quality Sensor Testing for Heating, Ventilation and Air Conditioning (HVAC)

    What is Heating, Ventilation and Air Conditioning (HVAC) and why is an Air Quality Sensor needed? Heating, ventilation and air conditioning (HVAC) is the technology of indoor and vehicular environmental comfort which aims to provide optimal wellbeing, safety and cost efficiency of those inhaling the air. This cannot be achieved without indoor air quality testing using an air quality ...

  • How clean is your local air?

    Few people know how clean the air is where they live, work, exercise or where their children go to school. Although air quality can be shown to vary significantly over short distances, air pollution is generally measured using a small number of large, expensive and high quality monitoring stations. The equipment used in these stations is very accurate and complies with measurement standards but ...


    By AQMesh

  • Canarina DISPER Software · air quality dispersion model · algorithms 3

      Canarina DISPER Software · air quality dispersion model   Symbol / Definition Ly= Initial plume length for Schulman-Scire downwash sources with enhanced lateral plume spread (m) Lb= Lesser of ...

  • Application of nanocrystalline metal oxide gas sensors for air quality monitoring

    Increasing concern regarding health effects caused by air pollution, together with the limited spatial resolution achievable with conventional monitoring stations, have driven efforts to develop inexpensive metal oxide gas sensors for air quality measurements. The sensing mechanism is dependent on physicochemical reactions between adsorbed gas molecules and oxygen species on the oxide surface, ...


    By Inderscience Publishers

  • The challenges and benefits of local air quality monitoring

    A new generation of air quality monitors is now being offered to provide localised, real-time air quality readings – but the potential benefit is only just starting to be realised. It is generally accepted that whilst measurements from air quality reference stations are highly accurate, they are not sufficiently location-specific. Key pollutants – such as NO2 and PM2.5 ...


    By AQMesh

  • President Macron inaugurates the 24 Cairnet sensor network to measure Sargassum algae emanations - Case study

    The new network of 24 Cairnet stations to measure the Sargassum algae gas emanations provided by ENVEA Cairpol and installed by Gwad’air end of August has been inaugurated by the French President Macron during his trip to the Antilles this Friday, September 28th. Following ...


    By ENVEA

  • AQMesh is recognised as the most accurate small sensor system for outdoor air quality monitoring in AIRLAB International Microsensors Challenge

    The results of the 2019 AIRLAB Microsensors Challenge* were revealed in Paris on 21st January and AQMesh was awarded the highest score for accuracy of all products presented for monitoring of outdoor air quality. In this independent international comparison of small sensor air quality monitoring products, a range of manufacturers submitted three examples of their product to be evaluated in a ...


    By AQMesh

  • New modular options for AQMesh air quality monitoring systems

    The AQMesh small sensor air quality monitoring system already offers flexibility of monitoring location – through independent power and communications – as well as high data quality and traceability. Now the platform is even more flexible offering up to 20 different data channels. The wide range of sensors, including gases such as NO2, particulate matter (PM1, PM2.5 and PM10) wind and ...


    By AQMesh

  • AQMesh shown to achieve highest correlation coefficients in new ACS paper

    A new paper published by the American Chemical Society (ACS Sensors) reviews the use of amperometric electrochemical gas sensors for monitoring inorganic gases that affect urban air quality. Written by John Saffell and Ronan Baron of Alphasense, the paper gives a full explanation of how the sensors work, how they have developed and a review of ...


    By AQMesh

  • Cities in France become smarter thanks to Lufft Sensors

    CITYRAMA Smart Data for Smart Cities, is a French company and a subsidiary of Mobile Tech People (DPW), is an IoT (Internet of Things) platform for intelligent city management. It was founded in 2015 and provides PaaS (Platform as a Service) turnkey solutions for data collection and analysis in which everything is included ...


    By OTT HydroMet

  • AQMesh network will be used to manage Marseille tunnel ventilation

    Following a successful evaluation phase in 2018, AQMesh small sensor air quality monitoring ‘pods’ have been selected for use in a project to control the ventilation of a road tunnel in the city of Marseille.Supported by the AtmoSud (AirPACA) local air quality monitoring network, the CETU (Tunnel Studies Centre) and AQMesh distributor Addair, eight AQMesh pods were installed in February 2019, ...


    By AQMesh

  • Multiple sensor fault detection and isolation of an air quality monitoring network using RBF-NLPCA model

    This paper presents a data-driven method based on non-linear principal component analysis to detect and isolate multiple sensor faults. The RBF-NLPCA model is obtained by combining a principal curve algorithm and two three-layer radial basis function (RBF) networks. The reconstruction approach for multiple sensors is proposed in the non-linear case and successfully applied for multiple sensor ...


    By Inderscience Publishers

  • Two AQMesh pods operating across Spain for over 6 years

    Whilst not the only AQMesh pods still in regular use since the product was commercially launched in 2013, two AQMesh pods are still in use in Spain and demonstrate the long life of this small sensor air quality monitoring system. Over the last six years, the two pods have been loaned by AQMesh distributor in Spain, Envirodata, to a number of customers for trials and demonstrations, as well as ...


    By AQMesh

  • Kids With Allergies? Learn How To Get Better Air Quality In Your Home And Create A Safe Environment For Them

    Having a safe environment for our kids is an eternal battle. Fighting allergies, asthma, and many other respiratory diseases can make your life miserable – and your family’s too. We all know what it takes to keep a home clean. But what about the air itself? Every family wants to have a healthy home and that their children breathe clean air, but just a few actually ...


    By uHoo Limited

  • MONITORING & ALERT NETWORK in response to the health problems of Sargasso algae

    Martinique has been facing a major health problem in recent years. Indeed, since 2011, the unprecedented phenomenon of massive stranding of Sargasso algae has affected the Atlantic and southern coasts of Martinique. This phenomenon is the origin of a smelling gas emanating from the putrefaction of algae, among these gases hydrogen sulfide (H2S) and ammonia (NH3). Beyond the olfactory discomfort, ...


    By ENVEA

  • Poject Urban Observatory - Newcastle, UK - Case Study

    Summary: 55 AQMesh pods are being used across Newcastle and Gateshead as part of a project to provide a digital view of how cities work. Location: Newcastle, UK Date: September 2018 - Present Customer: Newcastle University / Urban ...


    By AQMesh

  • Oizom Multi- Level Calibration System For Environment Monitoring Solution

    In laboratory calibration, assembled Oizom devices POLLUDRONE, DUSTROID, ODOSENSE, WEATHERCOM are calibrated with pure air and calibration gases with high range concentrations. In a laboratory setting, zero and span calibration are performed in order to validate the manufacturer’s sensor calibration and determine the sensor offset or gain error if any. In order to perform zero and span ...


    By Oizom Instruments Pvt. Ltd.

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